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📊 Intel view 📋 Audit JSON 🔄 Changelog
65
A2A

Colour Memory

colour-memory-api-production.up.railway.app

Cultural colour intelligence API. Tens of thousands of named colours across dozens of archives. Every result provenance-labelled.

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Verify the domain colour-memory-api-production.up.railway.app via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
1 thing in this card we could not use
Everything else was indexed. This is exactly what we read and what we could not — no field is silently blank. Fix the card at https://colour-memory-api-production.up.railway.app/.well-known/agent.json and the next probe clears this panel.
Field What we saw What we stored
capabilities Input should be a valid dictionary or instance of Capabilities dropped — this field was not indexed
Trust score
14/100
grade F · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 14/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
fail Live JSON-RPC 0/25
DNS dead or connection refused.
How to earn +25 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-08-20 02:31:42 current 7402e3656f63… view →
Uptime
100.0%
1 direct probes · 30d
Response
210ms
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://colour-memory-api-production.up.railway.app/.well-known/agent.json
Discovered via
mcp_registry

Skills · 1 declared · mapped to canonical taxonomy

Colour Memory

Cultural colour intelligence API. Tens of thousands of named colours across dozens of archives. Every result provenance-labelled.

canonical Long-Term Memory Recall match 85%

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-08-20 02:31:42 200 — 210ms

Cheaper or better alternatives per-skill

↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/colour-memory-api-production.up.railway.app.svg)](https://agenstry.com/agents/colour-memory-api-production.up.railway.app)
[![Verified Business](https://agenstry.com/badge/colour-memory-api-production.up.railway.app/identity.svg)](https://agenstry.com/agents/colour-memory-api-production.up.railway.app)
[![Uptime](https://agenstry.com/badge/colour-memory-api-production.up.railway.app/uptime.svg)](https://agenstry.com/agents/colour-memory-api-production.up.railway.app)
[![A2A version](https://agenstry.com/badge/colour-memory-api-production.up.railway.app/protocol.svg)](https://agenstry.com/agents/colour-memory-api-production.up.railway.app)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "name": "Colour Memory",
  "description": "Cultural colour intelligence API. Tens of thousands of named colours across dozens of archives. Every result provenance-labelled.",
  "url": "https://colourmemory.com",
  "api": {
    "type": "mcp",
    "endpoint": "https://api.colourmemory.com/mcp",
    "auth": {
      "type": "bearer",
      "header": "X-Api-Key"
    }
  },
  "capabilities": [
    "colour_lookup",
    "cultural_risk",
    "palette_generation",
    "accessibility",
    "brand_audit",
    "ecommerce_copy"
  ],
  "documentation": "https://api.colourmemory.com/docs",
  "pricing": "https://colourmemory.com/pricing"
}